Mitsubishi Electric PUHY-P168, Service Handbook

Page: 37 / 404

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[
II
Restrictions ]
Wiring method/address setting method
Pro
ce-
du-
res
Unit or controller
Address
setting
range
Setting method Notes
Facto-
ry set-
ting
1 Indoor
unit Main unit IC 01 to 50
Œ
Assign the smallest address to
the main unit in the group.
ΠIn an R2 system with a sub BC
controller, make the settings for
the indoor units in the following
order.
(i) Indoor unit to be connected to
the main BC controller
(ii) Indoor unit to be connected
to sub BC controller 1
(iii) Indoor unit to be connected
to sub BC controller 2
Make the settings for the indoor
units in the way that the formula
"(i) < (ii) < (iii)" is true.
Œ
Port number setting is
required by an R2 sys-
tem.
ΠTo perform a group op-
eration of indoor units
that have different func-
tions, set the indoor unit
in the group with the
greatest number of
functions as the main
unit.
00
Sub unit Assign sequential numbers start-
ing with the address of the main
unit in the same group +1. (Main
unit a1, main unit address
+2, main unit a3, etc.)
2 LOSSNAY LC 01 to 50 Assign an arbitrary but unique ad-
dress to each of these units after
assigning an address to all indoor
units. None of these addresses
may overlap any of the in-
door unit addresses. 00
3 MA
remote
controller Main
remote
controller MA No
settings
required. - Main
Sub
remote
controller MA Sub
remote
controller Settings to be made according to
the remote controller function se-
lection
4 Outdoor unit OC 51 to 100 The sum of the smallest address
of the indoor units in the same sys-
tem and 50
Œ
To set the address to
100, set it to 50.
ΠIf a given address over-
laps any of the ad-
dresses that are
assigned to the outdoor
units or to the sub BC
controller, use a differ-
ent, unused address
within the setting
range.
ΠThe use of a sub BC
controller requires the
connection of a main
BC controller.
00
5 Auxiliary
unit BC
controller
(main) BC 52 to 100 Outdoor unit a 1
BC
controller
(sub) BS Assign an address that equals the
sum of the smallest address of the
indoor units that are connected to
the sub BC controller and 50.